when i end the TaskInstance,an LazyInitializationException o

[foolpcman]

first,i want say sorry ,because i'm a Chinese and english isn't well.
i think you can know the folowing language:
when i do this:

RndfReport businessReport = new RndfReport();
 businessReport.setExampleName(example_name);
 businessReport.setExampleRemark(example_remark);

 JbpmConfiguration jbpmConfiguration = JbpmConfiguration.getInstance();
 JbpmContext jbpmContext = jbpmConfiguration.createJbpmContext();
 Session hsession = jbpmContext.getSessionFactory().openSession();
 Transaction transaction = hsession.beginTransaction();
 try {

 hsession.save(businessReport);
 transaction.commit();
 ProcessDefinition pd = jbpmContext.getGraphSession().findLatestProcessDefinition("RNDFProcess");
 ProcessInstance pi = pd.createProcessInstance();
 pi.getContextInstance().setVariable("username", from_username);
 TaskInstance ti = pi.getTaskMgmtInstance().createStartTaskInstance();
 ti.setVariable("report_id", businessReport.getReportId());
 ti.end();
 } catch (Exception e) {
 System.out.println("Unknown error in the SaveGo().");
 return_code = Property.SQL_ERROR;
 message = "?????????";
 event_type = "";
 e.getMessage();
 e.printStackTrace();
 transaction.rollback();
 }finally{
 hsession.close();
 jbpmContext.close();
 }

exception:

15:06:16,671 [http8001-Processor25] ERROR LazyInitializationException : failed to lazily initialize a collection of role: org.jbpm.graph.def.Node.leavingTransitions, no session or session was closed
org.hibernate.LazyInitializationException: failed to lazily initialize a collection of role: org.jbpm.graph.def.Node.leavingTransitions, no session or session was closed
 at org.hibernate.collection.AbstractPersistentCollection.throwLazyInitializationException(AbstractPersistentCollection.java:358)
 at org.hibernate.collection.AbstractPersistentCollection.throwLazyInitializationExceptionIfNotConnected(AbstractPersistentCollection.java:350)
 at org.hibernate.collection.AbstractPersistentCollection.readSize(AbstractPersistentCollection.java:97)
 at org.hibernate.collection.PersistentList.size(PersistentList.java:91)
 at org.jbpm.graph.def.Node.getDefaultLeavingTransition(Node.java:217)
 at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
 at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
 at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
 at java.lang.reflect.Method.invoke(Method.java:585)
 at org.hibernate.proxy.pojo.cglib.CGLIBLazyInitializer.invoke(CGLIBLazyInitializer.java:147)
 at org.jbpm.graph.def.Node$$EnhancerByCGLIB$$57ae0d8c.getDefaultLeavingTransition(<generated>)
 at org.jbpm.graph.exe.Token.signal(Token.java:136)
 at org.jbpm.taskmgmt.exe.TaskInstance.end(TaskInstance.java:475)
 at org.jbpm.taskmgmt.exe.TaskInstance.end(TaskInstance.java:389)
 at buesiness.BusinessEngine.SaveGo(BusinessEngine.java:119)
 at buesiness.BusinessEngine.exectue(BusinessEngine.java:63)
 at org.apache.jsp.order_005fexec_jsp._jspService(order_005fexec_jsp.java:99)
 at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:133)
 at javax.servlet.http.HttpServlet.service(HttpServlet.java:856)
 at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:311)
 at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:301)
 at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:248)
 at javax.servlet.http.HttpServlet.service(HttpServlet.java:856)
 at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:284)
 at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:204)
 at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:256)
 at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:151)
 at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:563)
 at org.apache.catalina.core.StandardContextValve.invokeInternal(StandardContextValve.java:245)
 at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:199)
 at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:151)
 at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:563)
 at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:195)
 at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:151)
 at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:164)
 at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:149)
 at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:563)
 at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:156)
 at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:151)
 at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:563)
 at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:972)
 at org.apache.coyote.tomcat5.CoyoteAdapter.service(CoyoteAdapter.java:209)
 at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:670)
 at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConnection(Http11Protocol.java:517)
 at org.apache.tomcat.util.net.TcpWorkerThread.runIt(PoolTcpEndpoint.java:575)
 at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:666)
 at java.lang.Thread.run(Thread.java:595)

thank you !!!!!

[vtysh]

I think you get this exception, because you do so

transaction.commit();

If you got this transaction from jbpmContext session you've done wrong. If you need rollback transaction just use jbpmContext.setRollbackOnly() method and transaction will be rolled back on close() method.

[foolpcman]

Thank you vtysh!!
But when delete "transaction.commit();" and try again,The same exception still throwed.

[vtysh]

Remove all manual actions with transactions and sessions

Session hsession = jbpmContext.getSessionFactory().openSession();
 Transaction transaction = hsession.beginTransaction();

transaction.rollback();

hsession.close();

If you need to save some hibernate object use session from this method
jbpmContext.getSession()

[foolpcman]

Hi,vtysh
you are so warmhearted,I'm so sorry for asking you three times.
Why don't you go to sleep?:)
As you say,I modified the code like this:

JbpmConfiguration jbpmConfiguration = JbpmConfiguration.getInstance();
 JbpmContext jbpmContext = jbpmConfiguration.createJbpmContext();
 Session hsession = jbpmContext.getSession();
 try {
 hsession.save(businessReport);
 ProcessDefinition pd = jbpmContext.getGraphSession().findLatestProcessDefinition("RNDFProcess");
 ProcessInstance pi = pd.createProcessInstance();
 //pi.getContextInstance().setVariable("username", from_username);
 TaskInstance ti = pi.getTaskMgmtInstance().createStartTaskInstance();
 ti.setVariable("report_id", businessReport.getReportId());
 ti.end();
 } catch (Exception e) {
 System.out.println("Unknown error in the SaveGo().");
 return_code = Property.SQL_ERROR;
 message = "?????????";
 event_type = "";
 e.getMessage();
 e.printStackTrace();
 jbpmContext.setRollbackOnly();
 }finally{
 jbpmContext.close();
 }

But it's throws exception all the time

[vtysh]

Try to save process instance after creation and before the task ending

TaskInstance ti = pi.getTaskMgmtInstance().createStartTaskInstance();
jbpmContext.save(pi);

If it will not help, try to close jbpmContext after creation of start task instance and create new one (jbpmContext). Then retrieve already created taskInstance by id and try to process it.

About why i am not sleeping, because we are in different time zones and i have a day now.

[foolpcman]

Thank you with all my words

TaskInstance ti = pi.getTaskMgmtInstance().createStartTaskInstance();
jbpmContext.save(pi);//there is :org.hibernate.SessionException: Session is closed

when i close jbpmContext,it will throw the same exception(org.hibernate.SessionException: Session is)

[vtysh]

You should close context after save operation

[foolpcman]

Before save operation ,I never close context.see this:

try {
 hsession.save(businessReport);
 ProcessDefinition pd = jbpmContext.getGraphSession().findLatestProcessDefinition("RNDFProcess");
 ProcessInstance pi = pd.createProcessInstance();
 //pi.getContextInstance().setVariable("username", from_username);
 TaskInstance ti = pi.getTaskMgmtInstance().createStartTaskInstance();
 jbpmContext.close();
 ti.setVariable("report_id", businessReport.getReportId());
 ti.end();
 } catch (Exception e) {
 System.out.println("Unknown error in the SaveGo().");
 return_code = Property.SQL_ERROR;
 message = "?????????";
 event_type = "";
 e.getMessage();
 e.printStackTrace();
 jbpmContext.setRollbackOnly();
 }finally{
 jbpmContext.close();
 }

[foolpcman]

I mean that ,After create the TaskInstance

TaskInstance ti = pi.getTaskMgmtInstance().createStartTaskInstance();

Whether i save ti or close jbpmcontext ,the same exception always throwed.

09:27:24,765 [http8001-Processor25] ERROR DbPersistenceService : hibernate commit failed
org.hibernate.SessionException: Session is closed
 at org.hibernate.jdbc.JDBCContext.connection(JDBCContext.java:116)
 at org.hibernate.transaction.JDBCTransaction.commitAndResetAutoCommit(JDBCTransaction.java:139)
 at org.hibernate.transaction.JDBCTransaction.commit(JDBCTransaction.java:115)
 at org.jbpm.persistence.db.DbPersistenceService.commit(DbPersistenceService.java:253)
 at org.jbpm.persistence.db.DbPersistenceService.close(DbPersistenceService.java:211)
 at org.jbpm.svc.Services.close(Services.java:222)
 at org.jbpm.JbpmContext.close(JbpmContext.java:139)
 at buesiness.BusinessEngine.SaveGo(BusinessEngine.java:113)
 at buesiness.BusinessEngine.exectue(BusinessEngine.java:62)
 at org.apache.jsp.order_005fexec_jsp._jspService(order_005fexec_jsp.java:99)
 at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:133)
 at javax.servlet.http.HttpServlet.service(HttpServlet.java:856)
 at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:311)
 at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:301)
 at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:248)
 at javax.servlet.http.HttpServlet.service(HttpServlet.java:856)
 at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:284)
 at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:204)
 at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:256)
 at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:151)
 at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:563)
 at org.apache.catalina.core.StandardContextValve.invokeInternal(StandardContextValve.java:245)
 at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:199)
 at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:151)
 at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:563)
 at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:195)
 at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:151)
 at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:164)
 at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:149)
 at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:563)
 at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:156)
 at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:151)
 at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:563)
 at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:972)
 at org.apache.coyote.tomcat5.CoyoteAdapter.service(CoyoteAdapter.java:209)
 at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:670)
 at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConnection(Http11Protocol.java:517)
 at org.apache.tomcat.util.net.TcpWorkerThread.runIt(PoolTcpEndpoint.java:575)
 at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:666)
 at java.lang.Thread.run(Thread.java:595)

[foolpcman]

Sorry,I forgot the log

09:36:53,328 [http8001-Processor22] DEBUG JbpmContextInfo : creating jbpm context with service factories '[tx, message, scheduler, logging, persistence, authentication]'
09:36:53,328 [http8001-Processor22] DEBUG JbpmContext : creating org.jbpm.JbpmContext@1ddf47e
09:36:53,328 [http8001-Processor22] DEBUG DbPersistenceServiceFactory : creating persistence service
09:36:53,328 [http8001-Processor22] DEBUG DbPersistenceService : creating hibernate session
09:36:53,343 [http8001-Processor22] DEBUG DbPersistenceService : beginning hibernate transaction
Hibernate:
 select
 rndf_s_report.nextval
 from
 dual
Hibernate:
 /* named HQL query GraphSession.findLatestProcessDefinitionQuery */ select
 *
 from
 ( select
 processdef0_.ID_ as ID1_4_,
 processdef0_.NAME_ as NAME3_4_,
 processdef0_.DESCRIPTION_ as DESCRIPT4_4_,
 processdef0_.VERSION_ as VERSION5_4_,
 processdef0_.ISTERMINATIONIMPLICIT_ as ISTERMIN6_4_,
 processdef0_.STARTSTATE_ as STARTSTATE7_4_
 from
 JBPM_PROCESSDEFINITION processdef0_
 where
 processdef0_.NAME_=?
 order by
 processdef0_.VERSION_ desc )
 where
 rownum <= ?
Hibernate:
 select
 hibernate_sequence.nextval
 from
 dual
Hibernate:
 select
 hibernate_sequence.nextval
 from
 dual
09:36:53,359 [http8001-Processor22] DEBUG GraphElement : event 'process-start' on 'ProcessDefinition(RNDFProcess)' for 'Token(/)'
09:36:53,359 [http8001-Processor22] WARN StatefulPersistenceContext : Narrowing proxy to class org.jbpm.graph.node.StartState - this operation breaks ==
Hibernate:
 select
 hibernate_sequence.nextval
 from
 dual
09:36:53,375 [http8001-Processor22] DEBUG TaskController : creating task instance variable 'report_id' from process variable 'report_id', value 'null'
09:36:53,375 [http8001-Processor22] DEBUG VariableContainer : create variable 'report_id' in 'TaskInstance[appendForm]' with value 'null'
09:36:53,375 [http8001-Processor22] DEBUG GraphElement : event 'task-create' on 'Task(appendForm)' for 'Token(/)'
Hibernate:
 select
 hibernate_sequence.nextval
 from
 dual
Hibernate:
 select
 hibernate_sequence.nextval
 from
 dual
Hibernate:
 select
 hibernate_sequence.nextval
 from
 dual
Hibernate:
 /*
FROM
 RndfVUserinfo
WHERE
 group_fid LIKE '102220100%' */ select
 rndfvuseri0_.USERNAME as USERNAME32_,
 rndfvuseri0_.PASSWORD as PASSWORD32_,
 rndfvuseri0_.TRUENAME as TRUENAME32_,
 rndfvuseri0_.COMPANY as COMPANY32_,
 rndfvuseri0_.DEPARTMENT as DEPARTMENT32_,
 rndfvuseri0_.DUTY as DUTY32_,
 rndfvuseri0_.TELEPHONE as TELEPHONE32_,
 rndfvuseri0_.EMAIL as EMAIL32_,
 rndfvuseri0_.HANDSET as HANDSET32_,
 rndfvuseri0_.GROUP_NAME as GROUP10_32_,
 rndfvuseri0_.GROUP_DESCRIPTION as GROUP11_32_,
 rndfvuseri0_.GROUP_SID as GROUP12_32_,
 rndfvuseri0_.GROUP_FID as GROUP13_32_,
 rndfvuseri0_.SEARCH_LEVEL as SEARCH14_32_,
 rndfvuseri0_.LEVELS as LEVELS32_
 from
 WLSRNDF.RNDF_V_USERINFO rndfvuseri0_
 where
 group_fid like '102220100%'
09:36:56,203 [http8001-Processor22] DEBUG GraphElement : event 'task-assign' on 'Task(appendForm)' for 'Token(/)'
09:36:56,203 [http8001-Processor22] DEBUG JbpmContext : closing JbpmContext
09:36:56,203 [http8001-Processor22] DEBUG Services : closing service 'persistence': org.jbpm.persistence.db.DbPersistenceService@9d478b
09:36:56,203 [http8001-Processor22] DEBUG DbPersistenceService : committing hibernate transaction
09:36:56,203 [http8001-Processor22] ERROR DbPersistenceService : hibernate commit failed

[vtysh]

Try to debug this piece of code starting with some simple action gradually adding all other lines to see which code is broke your application. But it looks very strange, that after any write operation you get jbpmContext autoclose. Maybe something is wrong in hibernate or jbpm configuration? Do you use standart one, or some specific? And do you use last jbpm 3.2.1?

About closing context after creating process instance, i meant this

 ProcessInstance pi = pd.createProcessInstance();
 TaskInstance ti = pi.getTaskMgmtInstance().createStartTaskInstance();
 long id=ti.getId();
 jbpmContext.save(pi);
 jbpmContext.close();
 jbpmContext=jbpmConfiguration.createJbpmContext();
 ti=jbpmContext.getTaskMgmtSession().loadTaskInstance(id);

[foolpcman]

You are so kindly! thank you!
I'm not sure if my wording is right,Sorry!
I debug the code you wrote,The same exception(org.hibernate.SessionException: Session is closed!) was threw at this line:

jbpmContext.save(pi);

My jbpm version is 3.2GA and use default(jbpm.cfg.xml is null) config files except the following code in hibernate.cfg.xml

<property name="hibernate.dialect">org.hibernate.dialect.HSQLDialect</property>

 <!-- JDBC connection properties (begin) -->
 <property name="hibernate.connection.driver_class">org.hsqldb.jdbcDriver</property>
 <property name="hibernate.connection.url">jdbc:hsqldb:mem:jbpm</property>
 <property name="hibernate.connection.username">sa</property>
 <property name="hibernate.connection.password"></property>
 <!-- JDBC connection properties (end) -->

 <property name="hibernate.cache.provider_class">org.hibernate.cache.HashtableCacheProvider</property>

I'll have a try use jbpm3.2.1 version to debug same code.
I can never thank you enough for your help.

[foolpcman]

sorry , I send the wrong hibernate.cfg.xml

 <property name="hibernate.dialect">org.hibernate.dialect.Oracle9Dialect</property>

 <!-- JDBC connection properties (begin) -->
 <property name="hibernate.connection.driver_class">oracle.jdbc.OracleDriver</property>
 <property name="hibernate.connection.url">jdbc:oracle:thin:@localhost:1521:zbq</property>
 <property name="hibernate.connection.username">wlsrndf</property>
 <property name="hibernate.connection.password">wlsrndf</property>
 <!-- JDBC connection properties (end) -->

 <property name="hibernate.cache.provider_class">org.hibernate.cache.HashtableCacheProvider</property>

[vtysh]

I don't know, maybe it is an oracle problem. Try to search forum i saw some topics where users describe theirs problems with oracle environment.
My proposition is to start from simple code open and close context. Then add ProcessInstance creation, then add other parts of code... Also you can try your code with default hypersonic datasource to be sure, that problem is not in source.